   (Q dataset places-cam-likes
      aggregate rows of places
      filter != liked true, order id+
-     return rows (format-rows-by [int int->bool str])))
+     return rows (format-rows-by [int ->bool str] :format-nil-values)))
 
 
 ;; ### FILTER -- "BETWEEN", single subclause (neither "AND" nor "OR")

  (Q dataset places-cam-likes
     aggregate rows of places
     filter = liked true, order id+
     return rows (format-rows-by [int int->bool str])))

;;; filter != false
(datasets/expect-with-all-engines

  (Q dataset places-cam-likes
     aggregate rows of places
     filter != liked false, order id+
     return rows (format-rows-by [int ->bool str] :format-nil-values)))

;;; filter != true
(datasets/expect-with-all-engines
